Answer to Question #143325 in Physical geography for Javier

Question

How can the longer term changes in the ITCZ (Intertropical Convergence Zone) result in severe droughts (like La Nina) or flooding (El Nino) in in the tropical regions?

Answer 1

The ITCZ is the area where the north-east and south-east easterlies converge. Long-term water temperature and air pressure changes influence the density of water in the ocean and dryness of the air, causing droughts and flooding.